A New High-Efficiency Experimental Design for Optimizing Various Flow Velocities Testing in Extremely Aggressive Formation Water

Abstract

Compared to the traditional one-by-one method, a new high-efficiency method is used to characterize large numbers of regulations varying samples. Accordingly, bump-shaped electrodes are designed using the computational fluid dynamics model, and the effect of the height and placement of these electrodes is discussed. The experimental feasibility is certified by weight loss measurement. Results indicate that flow velocities of different bump-shaped electrode surfaces are significant differences. Thus, each surface can be analyzed independently; the thickness loss of each electrode surface is consistent with that using one-by-one method, which can effectively improve the experimental efficiency 12 times.

The development of a mechanistic-chemometrics model with multi-degree of freedom for pitting corrosion of HP-13Cr stainless steel under extremely oilfield environments

“…The iterative calculations of the semi-implicit method for pressure-linked equations (SIMPLE) algorithm were used to solve the momentum equations (N-S equations), which modified the pressure term in the discretized N-S equations and simultaneously renewed the velocity and pressure field. The simulations were converged when the minimum value reached less than 5×10 −4 [52][53].…”

Effect of Acidizing Process on the Stress Corrosion Cracking of HP-13Cr Stainless Steel in the Ultra-depth Well Environment

“…The corrosion behavior of HP-13Cr SS during the acidizing process and in the FW has been investigated in recent years (Moreira et al, 2004;Mu and Zhao, 2010;Marcus, 2011;Qi et al, 2021;Cui et al, 2021;Liu et al, 2021;Song et al, 2021). (Zhang et al, 2020) built the Pourbaix diagram for HP-13Cr SS in the aggressive FW and researched the general corrosion rate and pitting (Moreira et al, 2004;Marcus, 2011;Zhao et al, 2018;Li et al, 2019a;Li et al, 2019b;Zhao et al, 2019b;Qi et al, 2021;Cui et al, 2021;Liu et al, 2021). The effect of LA composition and the surface roughness on the corrosion behavior of HP-13Cr SS was also studied (Qi et al, 2021;Zhao et al, 2020).…”